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Item #:
220318153
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
Item #:
220318153
AUD 94
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Imported from USA store
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Order now and get it around Thursday, August 27
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Castrol GTX MAGNATEC provides instant protection to the engine from the start, forming an extra layer of protection during warm-up and reducing up to 75% of engine wear.
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What Stands Out
High Mileage Protection
Formulated for vehicles with over 75,000 miles, it helps prevent leaks and reduces oil consumption, ensuring optimal engine performance and longevity.
Synthetic Blend Formula
Combines the benefits of synthetic oils with traditional motor oils, offering superior wear protection and better overall engine efficiency.
Value Pack
Comes in a convenient pack of three 5-quart bottles, providing exceptional value for regular oil changes without compromising on quality.
Product Details
| SAE J300 Viscosity Grade | 5W-30 |
| Container Type | Bottle |
| Compatible with Vehicle Type | For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs |
| Viscosity Level | Medium to High |
| Automotive Fit Type | Universal Fit |
| Liquid Volume | 160 fluid ounces |
| Brand Name | Castrol |
| Manufacturer Part Number | 03102C |
| UPC | 079191231029 |
| Global Trade Identification Number | 00079191231029 |
| Manufacturer | Castrol |
| Size | 5 Quarts |
| Unit Count | 160 Fluid Ounces |
| Included Components | Motor Oil |
| Item Type Name | Motor Oil |
| Model Number | 03102 |
| Brand | Castrol |
| Package Information | Bottle |
| Vehicle Service Type | For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs |
| Item Weight | 4.5 lbs (2.04 kg) |
Who Should Buy?
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High Mileage Vehicles
Ideal for cars with over 75,000 miles, offering superior protection and performance to older engines.
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Drivers in Extreme Conditions
Suitable for users driving in severe temperatures or under heavy-load conditions, ensuring engine longevity.
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Regular Maintenance Users
Perfect for car owners who perform frequent oil changes and value enhanced engine cleanliness and performance.
-
New Vehicles
Not the best choice for brand-new cars requiring specific oil formulations for optimal operation.
Product Description
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil designed for?
Answer: Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil is specifically formulated for vehicles with over 75,000 miles on the odometer. It helps in reducing oil consumption, minimizing leaks, and preventing engine wear. This oil is particularly beneficial for older engines that require enhanced protection and performance, providing added lubricity and cleanliness to ensure optimal functioning. -
Question:
What are the benefits of using synthetic blend motor oil?
Answer: Synthetic blend motor oil combines the best of both synthetic and conventional oils, offering improved engine performance and protection. It resists thermal breakdown, provides superior stability, and reduces engine wear. This means your vehicle can operate efficiently under various conditions, extending the life of your engine. Using a synthetic blend oil like Castrol GTX can help maintain engine cleanliness, resulting in a smoother ride and better fuel efficiency. -
Question:
How often should I change my oil when using Castrol GTX High Mileage?
Answer: It's recommended to change the oil every 5,000 to 7,500 miles, depending on your driving conditions and manufacturer recommendations. Regular oil changes help maintain engine performance and longevity, particularly for high-mileage vehicles. Check your owner's manual for specific intervals, as driving habits, environment, and vehicle type might affect how frequently you need to change the oil. -
Question:
Can I use Castrol GTX High Mileage 5W-30 in any type of vehicle?
Answer: While Castrol GTX High Mileage 5W-30 is suitable for many high-mileage vehicles, it is essential to verify that your engine is compatible with this oil type. Always refer to your vehicle's owner's manual for the recommended oil viscosity and specifications. This oil is particularly advantageous for late-model vehicles or those that have experienced wear, ensuring optimal engine performance and protection. -
Question:
What is the difference between 5W-30 and other oil grades?
Answer: The numbers in oil grades like 5W-30 represent the viscosity of the oil at different temperatures. '5W' indicates winter viscosity, meaning it flows well in cold temperatures, while '30' shows its viscosity at operating temperatures. This makes 5W-30 versatile for various weather conditions, providing excellent protection during both summer heat and winter cold. Choosing the right oil grade is crucial for maintaining engine efficiency and performance. -
Question:
Does Castrol GTX High Mileage help with oil leaks?
Answer: Yes, Castrol GTX High Mileage is designed to address oil leaks common in older engines. It contains seal conditioners that help rejuvenate gaskets and seals, reducing the likelihood of leaks and oil consumption. This makes it an excellent choice for aging vehicles, allowing for better maintenance of oil levels and engine health, leading to improved performance over time. -
Question:
Is Castrol GTX High Mileage suitable for both gasoline and diesel engines?
Answer: Castrol GTX High Mileage 5W-30 is primarily formulated for gasoline engines but can also be used in some diesel engines that require similar viscosity grades. However, it’s crucial to check your vehicle manufacturer’s specifications to ensure compatibility. Using the correct oil type helps to maintain engine performance, efficiency, and longevity, regardless of the fuel type. -
Question:
How does high mileage oil differ from regular oil?
Answer: High mileage oils like Castrol GTX are specially formulated with additives that address the unique needs of aging engines. They often contain seal conditioners to prevent oil leaks and detergents that help REMOVE engine deposits. These formulations provide enhanced protection against wear and tear, which is essential for vehicles with higher mileage, ensuring that they run smoothly and efficiently for more years. -
Question:
What type of vehicles benefit from Castrol GTX High Mileage?
Answer: Vehicles with over 75,000 miles significantly benefit from using Castrol GTX High Mileage. This includes cars, trucks, and SUVs that may show signs of wear such as increased oil consumption or minor leaks. By using this motor oil, you can help protect the engine, enhance performance, and prolong the life of your vehicle. It's particularly useful in everyday driving scenarios where engine stress is common. -
Question:
Where can I buy Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts, Pack of 3?
Answer: You can buy Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil in Australia from Ubuy, a reliable online store that offers a wide selection of automotive products. Ubuy provides convenience and accessibility, making it easy for you to find and purchase the motor oil that best suits your needs.
Castrol Motor Oils 03102 Editorial Review
**** Customers are overwhelmingly positive about Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, praising its reliability and high performance. Many long-term users have trusted this oil for decades, attributing the longevity and health of their engines to its Consistent quality. The general sentiment is that Castrol GTX protects engines from wear and tear, prevents oil leaks, and allows for smoother operations, even under demanding conditions. For mechanics and everyday drivers alike, the product stands out as a value for the price, often noted for its affordability compared to other brands. There are instances where users, some with decades of experience, confidently recommend it over competitors, highlighting its superior composition and engine protection capabilities. Moreover, purchasing in bulk online appears to be a popular choice for customers, as it allows for competitive pricing and convenience. Overall, Castrol GTX is seen not just as an oil, but as an essential part of engine health management, allowing users to feel assured about their vehicles’ performance. **
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Pros
- High quality and reliable engine protection
- Affordable compared to competitors
- Long-standing reputation with many loyal customers
- Positive feedback from both casual users and seasoned mechanics
- Convenient bulk purchasing options available
Cons
- Price fluctuations for Prime members noted
Platform Trust & Buyer Confidence
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Chris
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“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
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“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
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“so easy to order delivery was way earlier than i expected”
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Gavin
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“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
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Jeannie
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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 94
Order now and get it around Thursday, August 27
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Features & Benefits
- Instant protection from start
- Reduces engine wear during warm-up
- Keeps critical parts 4X smoother”, “Superior wear protection on critical engine parts
- Follow manufacturer's recommendations for best performance
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